# CVE-2021-30245: Code execution in Apache OpenOffice via non-http(s) schemes in Hyperlinks

> Crafted non-http hyperlinks in documents can trigger untrusted code execution in Apache OpenOffice, requiring user interaction to open the file.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-2qf7-45r5-qhqx

## What is CVE-2021-30245?

CVE-2021-30245 is a high-severity code injection vulnerability in Apache Openoffice, published on 15 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The project received a report that all versions of Apache OpenOffice through 4.1.8 can open non-http(s) hyperlinks. The problem has existed since about 2006 and the issue is also in 4.1.9. If the link is specifically crafted this could lead to untrusted code execution. It is always best practice to be careful opening documents from unknown and unverified sources. The mitigation in Apache OpenOffice 4.1.10 (unreleased) assures that a security warning is displayed giving the user the option of continuing to open the hyperlink.

Weakness: CWE-610 (Externally Controlled Reference to a Resource in Another Sphere)

## Which versions are affected by CVE-2021-30245?

It affects 1 product.


Products: Apache Openoffice.

## How do I fix CVE-2021-30245?

No fix has been published for CVE-2021-30245 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30245 being exploited?

There is no known exploitation of CVE-2021-30245 in the wild and no public exploit code.

## Other vulnerabilities in Apache Openoffice

- [CVE-2014-3524](https://insights.sbomify.com/CVE-2014-3524/): Command injection in n/a (critical 9.3)
- [CVE-2010-3450](https://insights.sbomify.com/CVE-2010-3450/): Path traversal in n/a (critical 9.3)
- [CVE-2010-3451](https://insights.sbomify.com/CVE-2010-3451/): Use after free in n/a (critical 9.3)
- [CVE-2010-3452](https://insights.sbomify.com/CVE-2010-3452/): Use after free in n/a (critical 9.3)
- [CVE-2010-3453](https://insights.sbomify.com/CVE-2010-3453/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30245 and fix it if it is affected.

What it is: CVE-2021-30245 is a high-severity code injection vulnerability in Apache Openoffice, published on 15 Apr 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-30245 in the wild and no public exploit code.

Affected product: Apache Openoffice. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-30245/ (Markdown: https://insights.sbomify.com/CVE-2021-30245/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30245
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30245
- OSV: https://osv.dev/vulnerability/CVE-2021-30245

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-30245/
Summaries are generated and may contain mistakes; the official description above is the record.